Results 91 to 100 of about 2,497,137 (295)
International survey of rigid contact lens fitting
, 2013 Purpose\ud \ud To determine the extent of rigid contact lens fitting worldwide and to characterize the associated demographics and fitting patterns.\ud \ud Methods\ud \ud Survey forms were sent to contact lens fitters in up to 40 countries between ...
Morgan, Philip B. +3 more
core +1 more source
The structure equations of contact binaries [PDF]
Astronomy & Astrophysics, 2002 The structure equations of contact binaries are discussed. An equation for the transfer of mass between the com- ponents is derived. Serious uncertainties concern only the transfer of energy. They are expressed as unknown functions. An evolution code for contact binaries is presented.
openaire +1 more source
The Astrophysical JournalWe present archival Hubble Space Telescope (HST) and JWST ultraviolet through near-infrared time series photometric observations of a massive minimal-contact binary candidate in the metal-poor galaxy Wolf–Lundmark–Melotte ( Z = 0.14 Z _⊙ ).
Maude Gull +17 more
doaj +1 more source
TV UMi: A Shallowly Eclipsing Marginal-Contact Binary
GalaxiesUsing twenty sectors of TESS observations and the hitherto unutilized radial velocities from the David Dunlap Observatory survey, we fully characterize the close binary TV UMi.
Atila Čeki, Olivera Latković
doaj +1 more source
Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing
Advanced Functional Materials, EarlyView.A Memristive‐Gated Transistor for Time‐Encoded Analog In‐Memory Computing — By exploiting the RC delay of a self‐rectifying interface‐type memristor, nonlinear I–V distortion is structurally bypassed, enabling 3‐bit nonvolatile memory, spike‐timing‐based analog encoding, and hardware‐calibrated reservoir‐computing validation within a unified device ...
Yun‐Seo Shin +7 more
wiley +1 more source
Orbital Modulation Induced by a Third Component in the Overcontact Binary V0554 Dra
The Astrophysical JournalWe present the first comprehensive photometric and spectroscopic analysis of the overcontact eclipsing binary V0554 Dra. By simultaneously modeling multiband light curves and radial velocity data using the Wilson–Devinney code, we determine that the ...
Mu-Lan Deng +10 more
doaj +1 more source
Photometric Studies of the Contact Binary BV Draconis [PDF]
Journal of Astronomy and Space Sciences, 1999 We performed CCD photometric observations of W UMa type contact binary BV Dra during eight nights from May 1996 to June 1999 using 61cm telescope at Sobaeksan Optical Astronomy Observatory, and completed BVR light curves of the system.
Jae Woo Lee, Wonyong Han, Chun-Hwey Kim
doaj
Load Distributing Metamaterials Via Discrete Optimization
Advanced Functional Materials, EarlyView.Mechanical metamaterials are computationally optimized to homogenize transmitted forces by minimizing the spread of reaction forces. The resulting architectures transform localized loading into broader, more uniform force distributions and experimentally demonstrate robust load spreading under quasi‐static and impact loading.
Andrea Detry +6 more
wiley +1 more source
A Application of WD Model to EB Type Contact Binary System [PDF]
Journal of Astronomy and Space Sciences, 2000 The EB type contact binaries show large temperature difference ( T 1,000K) between two components. Thus we have modified the mode 3 of the WD program to adjust albedos, limb darkening coefficients and gravity darkening exponents for both components of ...
Su-Yeon Oh, Kyu-Dong Oh
doaj
Advanced Functional Materials, EarlyView.Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley +1 more source